845| 0
|
GB/T 29463.3-2012 管壳式热交换器用垫片 第3部分:非金属软垫片 |
| ||||||||||||
|
||||||||||||
小黑屋|手机版|Archiver|电力建设网站 ( 苏ICP备16030970号-1 )|网站地图
GMT+8, 2024-4-24 21:06 , Processed in 0.211318 second(s), 26 queries .
Powered by Discuz! X3.4 Licensed
© 2001-2023 Discuz! Team.